Contact member for vibrating current-controlling regulators.



V. G. APPLE AND J. (3. KING. I CONTACT MEMBER FOR VIBRATING CURRENT CONTROLLING REGULATORS.

APPLICATION FILED FEB-14.!9IB.

Patented May 6 v.- G. APPLE AND 1 6. KING.

CON TAC-T MEMBER FOR VIBRATING CURRENT CONTROLLING REGULATORS.

APPLICATION FILED FEB. 14.1918.

Patentd May 6, 1919.

2 swans-sum 2.

7 5 0222209715 Q v ifs-3566 Q.

60 parts 1 I Dynamo eltdtric machines are freq UNITED STATES PATENT OFFICE.

vINcEN'r e. APPLE A D JESSE e.

KING, 0E DAYTON, 0310; SAID KING ASSIGNOR TO earn APPLE.

jcoN'rA'c'r MEMBER FOR vmmrnro CURRENT-CONTROLLING REGULATORS.

Patented May 6, 1919.

Original application filed April 28, 1917, Serial No. 168,803. Ilivided and this application filed February 14,

1918. Serial Ko'.:2l7,155.

To all whom it-may concern:

Be it known that we, VINoENr Gr. APPLE and Jnssn G. KING, (JltlZBIIS of the United States, each residing at Dayton, in the county of Montgomery and State of Ohio, have invented certain new and useful Improvements in Contact Members for Vibratmg Current Controlling Regulators, of which the following is a specification.

The invention-relates, to contact members for vibrating current controlling regulators.

One of the objects of the invention is to provide a contact member, rotatable against the confrontin' surfaceo f a fixed support and substantial y immovable in aplane parallel with its axis of rotation, so "as to maintainvits contacting surface uniformly insaid vertical plane; in -cooperation with a-vibrat able contact member, axially movable in a plane parallel to 01- coaxiallyvwith the axis of the rotatable member, the-axiallymovable member, preferably, projectingthrough said fixed support .to contact the rotatable member.

Another object of the invention is-to provide a specific structure in cooperation with saidcontact members to in art suitable motion to the respective mem ers.

Other and further objects of "the invention will become readily apparent; to persons skilled-in: the art from a considerationsof the s ecification when taken in'connection with t e drawings, wherfeina Figure 1 is a Tcen'tral axial-section of a dynamo electric machine, "showing fragments of the dynamo, and a regulator as'the same would appear when mounted on the end of an engine shaft of an automobile.

Fig. 2 =isa cross sectional view takenon li'ne 2-'-2 of'Fig. l. i

- Fig. 3 is an end:Viewoftheregulator.

Fig. 4 is a perspective view of a contact guiding disk;

Fig. 5 "s an axially movable contact guided within and by said' di'sk.

Fig.6 is a simplified diagram of acircuit, in which our invention may .be incorporated.

In all the views thesamecharacters'of reference are employed to indicate similar made of insulatin .material, is.;-fa stened to i the front end of t e magnetic frame of the dynamo and is provided with a threaded ed perforation 1 1 that is coaxially arrang with the shaft 11. A casing 15 of the our:

rent regulator, is also provided with a threaded portion 16 for cooperation with the threaded portion 14 in the frame mem her. The framemember 15 is preferably made of iron'or soft steel, which ma besubsequently electro-plated, if desire and is %rovided with a central perforated core 17.

etween the annular wall 18 of the casing and the core 17 is an electric coil 19, having in the present embodimentone of its terminals .20 connected directly to the casin and the other terminal connected to an insu ated ring 21, which surrounds the inner hub of the casing and is insulated therefrom by a circular ring of insulating material .22. N car the innerend of the casing is an internal shoulder 23 against which rests a perforated diaphragm or flat ring 24, preferably of magnetic material, which is provided with a perforation 25 somewhat larger in diameter than the diameter of the core 17.

diaphragrni27; as by a pin 29 and is normally in 1nduct1ve relation'with the core 17 and the magnetic disk 24. The path of mag netic flux, produced by the energized coil 19, is through the core 17, the frame 15. of the regulator, through the magnetic disk 24 and the bridging armature 28, to the core 17,

thus attractlng the armature 2,8, to vval'd the disk 24 and the core 17, when the "c'o'il'lfi is energized. The core 17 is hollow, or in other words, is provided with an axial bore 30 in which is centrally located an open heli cal spring 31 which rests against the armature 28, and is in adjustable relation with the core 17 by a screw. 32. When the screw 32 is rotated clockwise, the tension ef-'the thick disk 39 of insulating material, which is of smaller diameter, in its place. =The insulating disk 39 may be of lava, or the like, more clearly shown in Fig. 4. It is provided with a cruciform, centrally disposed opening 40, to receive a cruciform contact member 41. The contact member 41:-i's guided in its'axial movement in the opening 40, but is free to slide axially therein:

A clamping ring 42 is'screw threaded on its outer periphery and is provided with an annular shoulder 43 bounding the inner perforation thereof; The insulatingdisk 39, rests in the shoulder 43 of the ring 42 and against the surface of thegdisk 34 that bounds the perforation'35 therein.

Now it will be apparent that when the armature 28 is vibrated, in response to the change in the magnetic flux of the electromagnet, thatthe cruciform contact member 41 is axially movedwith the armature,

through the instrumentality of the'connecting pm 29, and permitted to participate in such movement by reason of thefact that the contact 41 isslidably movable but guided in the cruciform perforation in the insulating supporting'disk 39.

Separating washers {44 and 45 surround the pin '29 and separate the armature 28 from the flexible disk 27 and the latter dis k from the contact 41, so that there will be-no mutual interference of the parts "when they are vibrated by the effect of the electro-mag net." The end of the armature sha'ftll axially bored eccentrically to its axis, as at 46. Located in the center of this bore, and slidable therein, is a carbon or composition rod or cylinder 47, the front end of which rests upon a ring 48 and the-rear portion being gu'id'edby the disk 49. The rear part I of therod 47 rests upon a disk' o'f insulating material 49 which' abuts against a disk 50. The rear end-inf the rod 47" is supported-by these disks and is yieldingly pressed forwardly: spring 51, whichi-s located in a smaller coaxial-1y arranged. .pierforatibn 52 in the end of the shaft 11. Screw threaded buttons or ends 52am 53may hesmPlQWd fer; increasing'the 'efi'e'ctiveleiigth of'the spring 51 so as to vary the amount of presure er ed by l te-easiest t e ta ba rod 47, in its "contact with theiiisiilating disk 39.

As the shaft 11 is rotated the carbon rod 41 sweeps'over the stationary disk 3'9 'a nd at 'all times-presents its front surface} -in= a constant'Wertical plane for contact With the cruciform contact piece 41 which is movable through the disk '39. When the armature 28 is attracted by the elect-ro-magnet, against the yielding influence of-the spring 3l,-the cruciform contd ctmember 41 is withdrawn from its electrical connectionwiththe front end of the carbon rod 47, but the rod 47 cannot follow the contact member 41 because it abuts againstthe confronting surface 'of the disk39.

The wear'on the frontsurface of the rod 47 is'uniform,-and-inasmuch as it sweeps over theconfronting surface ofthe-cruciform: contact '41,: the wear on such contact-is also-uniform. a Therefore the confronting surfaces-4'1 and arealw'ays located in parallel-planes 5 L The casing 15 is provided with arecess 55 in: which the-end of the screw .32 is contained and which =is covered by a-iscrew. plate, or cover- "56, wh ich is removable only'when. access to the {screw 32 is desirable.*

' a The present invent-ionis morezparticularly concerned with "the contacts 41 and '47 and their mode of operation. Other features-of thestructure shown will formsubj ect mat- A ter' "of another application to'behereafter filed, both 4 of which are divisional applications, divided from Serial (No/163,803, filed April 23, 4917 by; vincent 'G. Apple, in

which said original application-parts: of) the device herein shown,-were disclosed but were not clalmed, other' parts of whichh were claimed, but were required to'abe'wdivided from the or-iginahapplication;

In Fig flfiofithisapplication there is show-11 a i simplified I diagram of. circuits in which the regulator "is especially adapted, in which 60 is the dynamo :havinga positive brush26-1i and a negative brush '62with;a*series field 63 connected by a wife 64 to the negative brush and i by wire .65 .to' the negative termiiral of a storagebattery 66. i The other terminal 67, of the storage? battery; is eon'neoted' to a wire -168 While: the terminal 69 of the storagebattery is '?connected byia wire wire 72 to the rotating contact 47 of the reg,- ulatorgaiiclzis also honnected 'by wires. 13 to- P. P gf member," movable Pla e at rig t. nj $l O theipath withvthasecon membe inglyholding the'secon 0 ed contact, nimber 

